This one ... http://www.tantel.ca/Sand%20Blaster.html shows a sand blasting cabinet similar to the the one KH made and posted on the VOD, but this chaps idea is to use an old liferaft canister.Perhaps a little bigger than most people would need but most of the hard work is already done for you ... brilliant!

I've been looking at sandblasting cabinets for a while, but... the decent ones seam to go for a fortune, I only want one for a few bits when I restore my camper van

there's a few with bits missing... but not knowing how they're made I'm not sure what's missing....

when the shot falls down into the bottom of the cabinet, and is sucked back up to blow around again... anyone know how it's filtered out from the bits of rust etc.. ?

when the shot falls down into the bottom of the cabinet, and is sucked back up to blow around again... anyone know how it's filtered out from the bits of rust etc.. ?

It's not, well the fine particles are drawn out in the dust extraction, but the larger bits get cycled around with the shot.Or that's how the one I used to operate worked, but that was a proper industrial one, 5m x 4m, self loading using screw feeds in the floor, you didn't just put your hands in, you stood inside it !